SOLVED: 'Using predicate logic, prove that the argument is valid: Use the predicate symbols shown. There is an astronomer who is not nearsighted. Everyone who wears glasses is nearsighted. Furthermore, everyone either wears glasses or wears contact lenses Therefore, some astronomer wears contact lenses. A(x), N(x), G(x) , C(x)'

A Taxonomy of Hoare-Like Logics: Towards a Holistic View using Predicate Transformers and Kleene Algebras with Top and Tests | Proceedings of the ACM on Programming Languages

Inductive Synthesis of Inductive Heap Predicates | Proceedings of the ACM on Programming Languages